Let's divide 40638495 by 939
We want to divide 40638495 by 939.

Step 1:
939 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 939

Let's proceed to step 2:
939 goes into 40 0 times with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 40, we end up with 40.
Fetch the next digit (6) from the dividend, attach it to 40 and continue: 406 / 939

On to step 3:
When dividing 406 by 939, we get 0 with a remainder of 406.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 406 and we're left with 406.
Grab the next digit (3) from the dividend, add it to 406, then carry on: 4063 / 939

Let's proceed to step 4:
939 can be fit into 4063 4 times, resulting in a remainder of 307.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 3756 from 4063 and we're left with 307.
Fetch the next digit (8) from the dividend, attach it to 307 and continue: 3078 / 939

Advancing to step 5:
939 can be fit into 3078 3 times, resulting in a remainder of 261.
The next digit of our result is 3. 
Result so far: 43.0
If we subtract 2817 from 3078, we get 261.
Append the next digit (4) from the dividend to 261 and continue with: 2614 / 939

Advancing to step 6:
If we divide 2614 by 939, we get 2 and a remainder of 736.
Write down 2 as next digit of the result. 
Result so far: 432.0
Subtracting 1878 from 2614 leaves us with 736.
Take the next digit (9) from the dividend and append it to 736, then repeat: 7369 / 939

Moving on to step 7:
The number 939 fits into 7369 7 times, leaving a remainder of 796.
Write down 7 as next digit of the result. 
Result so far: 4327.0
Deduct 6573 from 7369 and we're left with 796.
Fetch the next digit (5) from the dividend, attach it to 796 and continue: 7965 / 939

On to step 8:
939 goes into 7965 8 times with a remainder of 453.
The next digit of our result is 8. 
Result so far: 43278.0
If we take 7512 away from 7965, we end up with 453.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4530, and continue the process.

Step 9:
If we divide 4530 by 939, we get 4 and a remainder of 774.
Write down 4 as next digit of the result. 
Result so far: 43278.4
Subtracting 3756 from 4530 leaves us with 774.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7740, and continue the process.

On to step 10:
939 can be fit into 7740 8 times, resulting in a remainder of 228.
Use 8 as the next digit of our solution. 
Result so far: 43278.48
The remainder is 228 after subtracting 7512 from 7740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

On to step 11:
939 can be fit into 2280 2 times, resulting in a remainder of 402.
Put 2 as the next digit of the answer. 
Result so far: 43278.482
Subtract 1878 from 2280 to get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Moving on to step 12:
939 goes into 4020 4 times with a remainder of 264.
Use 4 as the next digit of our solution. 
Result so far: 43278.4824
Deduct 3756 from 4020 and we're left with 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Step 13:
939 goes into 2640 2 times with a remainder of 762.
The number 2 becomes the next digit in our result. 
Result so far: 43278.48242
Subtracting 1878 from 2640 leaves us with 762.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7620, and continue the process.

Step 14:
7620 divided by 939 is 8 with a remainder of 108.
The number 8 becomes the next digit in our result. 
Result so far: 43278.482428
If we subtract 7512 from 7620, we get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Let's proceed to step 15:
939 can be fit into 1080 1 times, resulting in a remainder of 141.
Use 1 as the next digit of our solution. 
Result so far: 43278.4824281
Subtract 939 from 1080 to get 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

On to step 16:
939 goes into 1410 1 times with a remainder of 471.
The next digit of our result is 1. 
Result so far: 43278.48242811
Deduct 939 from 1410 and we're left with 471.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4710, and continue the process.

The final outcome is 43278.48242811, with a leftover of 4.71e-07.